United States Boomerang Association 
Features FAQ, events calendar, regional contacts, vendor database, and crafting and history resources from this official administrative organization.
http://www.usba.org/Belgian Boomerang Association
Sport history and introduction, local tournaments listing, and a photo gallery.
http://www.lexasoft.com/bba/
Boomerang Association of Australia (BAA)
The club publishes magazines, runs tournaments, and in general promotes the sport and history of boomerangs.
http://www.boomerang.org.au/
Danish Boomerang Club
Member listings, event listing, and national championship results; in Danish and English.
http://www.boomerangklub.dk/
BTA NSW
Official site of the Boomerang Throwing Association of New South Wales. Includes contact information, photos, competitions, and grounds locations.
http://btansw.boomerang.org.au
HITHG Boomerangs
Includes instructions and tips on throwing and catching boomerangs. Also provides profiles, rankings, and photos of members of the Hole in the Head Gang club of Seattle, Washington and a catalog of boomerangs for sale.
http://www.geocities.com/hithg_boomerangs/index.html
Washington Boomerang Club
Seattle based. Includes throw schedule and contact information. Hosting the 2008 World Boomerang Cup and provides schedule, photos, and local lodging, transportation, and tourist information.
http://www.waboomclub.org/
British Boomerang Society
Event listing with results, rules and the basics of constructing a boomerang from this club in England.
http://boomerangs.org.uk/
